Filtering apparatus.



PATENTES H l G. W, DURBRGW, FILTER NG APEARATUS.

APPLICTION FLED 0GT.30, 1905.

A ters being held in place by lugs 1Q on one side and buttons 11 on the other side thereof.

13 designates sediment-receptacles, one of which is located beneath the main near the upstreamside of each filter in position to receive solids arrested by the filter and falling therefrom. Said receptacles 13 also receive the lth removed from the filter by washing the same in the manner hereinafter described. Each filtering-receptacle 1'3 is rovided with an outlet-ni ple 14, controlled bv a valve l5. Said nipple communicates wit a conduit 16, llhaving three outletslO 161 'IWo closures 16 16 may be used to close the lend of two of said outlets, leaving the third open. K

Fluid-conducting means are provided independent ofthe main and communicating therewith on the upstream side of the valve -V for supplying liquid to be used in Washing the sediment ofi from the filters. Said means may include a ipe 17, having :branches 18 leading into the ollow body A and terminating in spraying-nozzles 19, each Iof said `'nozzles being positioned to direct liquid against the face of a filter. 20 designates valves for controlling communication with sprayingnozzles 19.

Vhenitzis desiredto clean the filters of any solid material which may have adhered to the face thereof, a stream is turned on through pipe 17, 'the main supply-valve V being closed and the valves 2O opened to .supply water to the nozzles 19. I At the same time the valves 15 are opened to allow the sediment 'to escape from sediment-recepta cles 13, whereupon the current flows through nozzles 19 and is therefrom distributed over the face of each filter, 'freeing them from any accumulated sediment and discharging such sediment through the nipples 14 into the discharge-conduit 16.

In assembling the parts the caps 12 12 12" are first removed, and each filter is inserted through' fille opening normallyclosed by the cap adjacent thereto, it, beingl- 'understood that each filter is made small enough to pass through the opening through. which it is to be inserted. lf

l In Figs. 6 and '7 I 'have shown a modified form of' filter adapted to be used vin the larger sizes of water-mains. filters proper are shown made in segments 21, fittinginto the spider 22, which isl construct- `ed with arms of the proper length to enable the spider to fit against annular shoulder S in the same manner as the forni of filter first described. rI`he back side of ,the spider is furnished with flanges 23 and the front side with buttons 11.l The spideris first put in place in upright position within thema-in. the arms of thespider and buttons 11 turned to hold said filters in place. The co'mbined In these views the he segmental filtersare then placed between supply of fluid to said filters, a receptacle beneath each filter adjacent "the upstream side thereof, a flushing-pipe with which `Veach of said vreceptacles communicates, spraying means for said filters above said ,recept'aclesl,- and 'fluid-conducting means .independent rolf lthe main and communicating therewith en' the upstream side of said valve forsupplying fluid to said spraying means.

, 2. vIn a filteringfapparatus, in'combinatien, a hollow body havlng an internal diameter increasing from one end tow'ard'lthe other,=a supply being provided for the smaller end of said body'and an outlet for Ithe larger 'end thereof, a series of filters spaced longitndh nally apart within said 'body,and-a sediment receptacle for each' filter on the side thereof toward the supply.A

3. In a filtering apparatus, in combinatinn,

an elongated hollowbody'having amintersfial diameter increasing from one end thereof toward'the other, said body being prev-idee with a supply leading into the smalleriend thereof and an outlet leading from the larger asy end thereof and having at different ipoints' -along the top thereof openings `leadling into the interior thereof, means `for 'closingsaid openings, an annular seat being :presided extending around theinternal diameter fof said body near the downstream side of nach of said openings, a filter in each seat, said Lfilter-.beingadapted to be inserted through the opening adjacentsaid seat, and means for collecting sediment retained by saidlters and retainingI the same out of the path of 'the current;` V

4. In combination,a main, a series of 'filreg ters therefo'rjmeans forlretainin "said filters in advance of each other in sai main, said filters .each constructed to filter the entire stream passing through said main, said filters increasing in size from one end yof said main ,toward the other, a sediment-receptacle 'for collecting therebeneath the sediment arrested by each filter,- sprayingmeans for each ffiiter, and flushing means communicatingwith each of said receptacles fordischarging the sediment deposited by the whole series -offilters.

' 5. In combination, a main,la'series.of uil ters therefor, means for retaining said filters in advance of each other in said main, said'fil ters each 'constructed to filter the entire stream passing through said main, saidfilters4 increasing in size toward the downstream end filter adjacent the upstream sidek thereof, spraying means above said receptacle adapted to spray the filter adjacent said receptacle, and means communicating with each of said receptacles for discharging the sediment.

6. In combination, a series of crosses having vertically and horizontally extending arms, said crosses connected together to form a horizontally-extendmg mam, the horizontal arms of' said crosses progressively increasing in internal diameter toward the downstream end of the main, a cap closingij the top extension of each cross, a receptacle connected with the downward extension of each cross, a filter in the downstream extension of each cross, and a conduit adapted 'to convey sediment from said receptacles.

7. In combination, a substantially horizontal ma in, a plurality of filters in said main, said filters increasing in filtering area toward the downstream end of the main, and means out of the path o1u the current passing through the main for collecting sediment arrested by said filters.

S. In combination, a substantially horizon tal main, a plurality of filters in said main, said nlters increasing in filtering area toward the downstream end of the main, and settlingreceptacles out of the path el" the current passing t-hrough the main for collecting sediment arrested by said filters:

9; In a filtering apparatus, in combination, a substantially horizontal elongated hollow body having a supply at one end thereof and an outlet at the o ther end, a plurality of filters each of which is adapted to filter the entire stream passing through said. body, said filters increasing progressively in size toward the downstream end of said body, a sediment-receptacle for each filter, and means for flushing said receptacles.

10. In combination, a substantially horizontal main, a plurality of filters therein increasing in filtering area toward the downstream end of' the main, said filters having their upstream sides positioned to allow sediment to fall therefrom, an d means for retaining the sediment out ofl the path of the current passing through the main.

11. In. comliiination, a substantially horizontal main, a series of filters therein, a valve controlling the supply of fluid to said filters, a receptacle beneath each f ilfer adjacent the upstrean'i side thereof, a flushing-pipe with which each of said receptacles communi- Cates, sprayiifr means lor said filters above said receptacles, and fluirl-conducting means independent ofthe main and communicating therewith on the upstream side of said valve for supplying fluid to said spraying means.

12. In combination, a main, a series of filters therefor, means for retaining said filters in advance of each other in said main, said filters each constructed to filter the entire stream passing through said main, a sediment-receptacle for collecting therebeneath the sediment arrested by each filter, spraying means for each filter, and fiushing means communicating with each ot said receptacles for discharging the sediment deposited by the whole series el filters.

13. In combination, a main, a series o1' filters therefor, means for retaining said filters in advance olif each other in said main, said filters each constructed to filtery the entire stream passing through said main, a sediment-receptacle for cach filter adjacent the upstream side thereof,spraying means above said recel'itacle adapted to spray the filter ad, jacent said receptacle, and means communieating with each of said receptacles for dis-y charging the sediment.

lnv testimony whereof I have hereunto set my hand, at Los Angeles, California, this 24th day of October, 1905. t (irEOItGll W. DURBROW.

In presence of-f L ALBERT Il. MERRILL, y Jim1L 'lowNsEND- 

